1 /*
2 * hostapd / Station table
3 * Copyright (c) 2002-2011, Jouni Malinen <j@w1.fi>
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9 #ifndef STA_INFO_H
10 #define STA_INFO_H
11
12 #ifdef CONFIG_MESH
13 /* needed for mesh_plink_state enum */
14 #include "common/defs.h"
15 #endif /* CONFIG_MESH */
16
17 #include "list.h"
18
19 /* STA flags */
20 #define WLAN_STA_AUTH BIT(0)
21 #define WLAN_STA_ASSOC BIT(1)
22 #define WLAN_STA_AUTHORIZED BIT(5)
23 #define WLAN_STA_PENDING_POLL BIT(6) /* pending activity poll not ACKed */
24 #define WLAN_STA_SHORT_PREAMBLE BIT(7)
25 #define WLAN_STA_PREAUTH BIT(8)
26 #define WLAN_STA_WMM BIT(9)
27 #define WLAN_STA_MFP BIT(10)
28 #define WLAN_STA_HT BIT(11)
29 #define WLAN_STA_WPS BIT(12)
30 #define WLAN_STA_MAYBE_WPS BIT(13)
31 #define WLAN_STA_WDS BIT(14)
32 #define WLAN_STA_ASSOC_REQ_OK BIT(15)
33 #define WLAN_STA_WPS2 BIT(16)
34 #define WLAN_STA_GAS BIT(17)
35 #define WLAN_STA_VHT BIT(18)
36 #define WLAN_STA_WNM_SLEEP_MODE BIT(19)
37 #define WLAN_STA_VHT_OPMODE_ENABLED BIT(20)
38 #define WLAN_STA_VENDOR_VHT BIT(21)
39 #define WLAN_STA_PENDING_DISASSOC_CB BIT(29)
40 #define WLAN_STA_PENDING_DEAUTH_CB BIT(30)
41 #define WLAN_STA_NONERP BIT(31)
42
43 /* Maximum number of supported rates (from both Supported Rates and Extended
44 * Supported Rates IEs). */
45 #define WLAN_SUPP_RATES_MAX 32
46
47
48 struct sta_info {
49 struct sta_info *next; /* next entry in sta list */
50 struct sta_info *hnext; /* next entry in hash table list */
51 u8 addr[6];
52 be32 ipaddr;
53 struct dl_list ip6addr; /* list head for struct ip6addr */
54 u16 aid; /* STA's unique AID (1 .. 2007) or 0 if not yet assigned */
55 u32 flags; /* Bitfield of WLAN_STA_* */
56 u16 capability;
57 u16 listen_interval; /* or beacon_int for APs */
58 u8 supported_rates[WLAN_SUPP_RATES_MAX];
59 int supported_rates_len;
60 u8 qosinfo; /* Valid when WLAN_STA_WMM is set */
61
62 #ifdef CONFIG_MESH
63 enum mesh_plink_state plink_state;
64 u16 peer_lid;
65 u16 my_lid;
66 u16 mpm_close_reason;
67 int mpm_retries;
68 u8 my_nonce[32];
69 u8 peer_nonce[32];
70 u8 aek[32]; /* SHA256 digest length */
71 u8 mtk[16];
72 u8 mgtk[16];
73 u8 sae_auth_retry;
74 #endif /* CONFIG_MESH */
75
76 unsigned int nonerp_set:1;
77 unsigned int no_short_slot_time_set:1;
78 unsigned int no_short_preamble_set:1;
79 unsigned int no_ht_gf_set:1;
80 unsigned int no_ht_set:1;
81 unsigned int ht40_intolerant_set:1;
82 unsigned int ht_20mhz_set:1;
83 unsigned int no_p2p_set:1;
84 unsigned int qos_map_enabled:1;
85 unsigned int remediation:1;
86 unsigned int hs20_deauth_requested:1;
87 unsigned int session_timeout_set:1;
88 unsigned int radius_das_match:1;
89
90 u16 auth_alg;
91
92 enum {
93 STA_NULLFUNC = 0, STA_DISASSOC, STA_DEAUTH, STA_REMOVE,
94 STA_DISASSOC_FROM_CLI
95 } timeout_next;
96
97 u16 deauth_reason;
98 u16 disassoc_reason;
99
100 /* IEEE 802.1X related data */
101 struct eapol_state_machine *eapol_sm;
102
103 u32 acct_session_id_hi;
104 u32 acct_session_id_lo;
105 struct os_reltime acct_session_start;
106 int acct_session_started;
107 int acct_terminate_cause; /* Acct-Terminate-Cause */
108 int acct_interim_interval; /* Acct-Interim-Interval */
109
110 unsigned long last_rx_bytes;
111 unsigned long last_tx_bytes;
112 u32 acct_input_gigawords; /* Acct-Input-Gigawords */
113 u32 acct_output_gigawords; /* Acct-Output-Gigawords */
114
115 u8 *challenge; /* IEEE 802.11 Shared Key Authentication Challenge */
116
117 struct wpa_state_machine *wpa_sm;
118 struct rsn_preauth_interface *preauth_iface;
119
120 int vlan_id; /* 0: none, >0: VID */
121 int vlan_id_bound; /* updated by ap_sta_bind_vlan() */
122 /* PSKs from RADIUS authentication server */
123 struct hostapd_sta_wpa_psk_short *psk;
124
125 char *identity; /* User-Name from RADIUS */
126 char *radius_cui; /* Chargeable-User-Identity from RADIUS */
127
128 struct ieee80211_ht_capabilities *ht_capabilities;
129 struct ieee80211_vht_capabilities *vht_capabilities;
130 u8 vht_opmode;
131
132 #ifdef CONFIG_IEEE80211W
133 int sa_query_count; /* number of pending SA Query requests;
134 * 0 = no SA Query in progress */
135 int sa_query_timed_out;
136 u8 *sa_query_trans_id; /* buffer of WLAN_SA_QUERY_TR_ID_LEN *
137 * sa_query_count octets of pending SA Query
138 * transaction identifiers */
139 struct os_reltime sa_query_start;
140 #endif /* CONFIG_IEEE80211W */
141
142 #ifdef CONFIG_INTERWORKING
143 #define GAS_DIALOG_MAX 8 /* Max concurrent dialog number */
144 struct gas_dialog_info *gas_dialog;
145 u8 gas_dialog_next;
146 #endif /* CONFIG_INTERWORKING */
147
148 struct wpabuf *wps_ie; /* WPS IE from (Re)Association Request */
149 struct wpabuf *p2p_ie; /* P2P IE from (Re)Association Request */
150 struct wpabuf *hs20_ie; /* HS 2.0 IE from (Re)Association Request */
151 u8 remediation_method;
152 char *remediation_url; /* HS 2.0 Subscription Remediation Server URL */
153 struct wpabuf *hs20_deauth_req;
154 char *hs20_session_info_url;
155 int hs20_disassoc_timer;
156
157 struct os_reltime connected_time;
158
159 #ifdef CONFIG_SAE
160 struct sae_data *sae;
161 #endif /* CONFIG_SAE */
162
163 u32 session_timeout; /* valid only if session_timeout_set == 1 */
164
165 /* Last Authentication/(Re)Association Request/Action frame sequence
166 * control */
167 u16 last_seq_ctrl;
168 /* Last Authentication/(Re)Association Request/Action frame subtype */
169 u8 last_subtype;
170 };
171
172
173 /* Default value for maximum station inactivity. After AP_MAX_INACTIVITY has
174 * passed since last received frame from the station, a nullfunc data frame is
175 * sent to the station. If this frame is not acknowledged and no other frames
176 * have been received, the station will be disassociated after
177 * AP_DISASSOC_DELAY seconds. Similarly, the station will be deauthenticated
178 * after AP_DEAUTH_DELAY seconds has passed after disassociation. */
179 #define AP_MAX_INACTIVITY (5 * 60)
180 #define AP_DISASSOC_DELAY (1)
181 #define AP_DEAUTH_DELAY (1)
182 /* Number of seconds to keep STA entry with Authenticated flag after it has
183 * been disassociated. */
184 #define AP_MAX_INACTIVITY_AFTER_DISASSOC (1 * 30)
185 /* Number of seconds to keep STA entry after it has been deauthenticated. */
186 #define AP_MAX_INACTIVITY_AFTER_DEAUTH (1 * 5)
187
188
189 struct hostapd_data;
190
191 int ap_for_each_sta(struct hostapd_data *hapd,
192 int (*cb)(struct hostapd_data *hapd, struct sta_info *sta,
193 void *ctx),
194 void *ctx);
195 struct sta_info * ap_get_sta(struct hostapd_data *hapd, const u8 *sta);
196 struct sta_info * ap_get_sta_p2p(struct hostapd_data *hapd, const u8 *addr);
197 void ap_sta_hash_add(struct hostapd_data *hapd, struct sta_info *sta);
198 void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta);
199 void ap_sta_ip6addr_del(struct hostapd_data *hapd, struct sta_info *sta);
200 void hostapd_free_stas(struct hostapd_data *hapd);
201 void ap_handle_timer(void *eloop_ctx, void *timeout_ctx);
202 void ap_sta_replenish_timeout(struct hostapd_data *hapd, struct sta_info *sta,
203 u32 session_timeout);
204 void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta,
205 u32 session_timeout);
206 void ap_sta_no_session_timeout(struct hostapd_data *hapd,
207 struct sta_info *sta);
208 void ap_sta_session_warning_timeout(struct hostapd_data *hapd,
209 struct sta_info *sta, int warning_time);
210 struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr);
211 void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta,
212 u16 reason);
213 void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
214 u16 reason);
215 #ifdef CONFIG_WPS
216 int ap_sta_wps_cancel(struct hostapd_data *hapd,
217 struct sta_info *sta, void *ctx);
218 #endif /* CONFIG_WPS */
219 int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta);
220 void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta);
221 void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta);
222 int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta);
223 void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta,
224 const u8 *addr, u16 reason);
225
226 void ap_sta_set_authorized(struct hostapd_data *hapd,
227 struct sta_info *sta, int authorized);
ap_sta_is_authorized(struct sta_info * sta)228 static inline int ap_sta_is_authorized(struct sta_info *sta)
229 {
230 return sta->flags & WLAN_STA_AUTHORIZED;
231 }
232
233 void ap_sta_deauth_cb(struct hostapd_data *hapd, struct sta_info *sta);
234 void ap_sta_disassoc_cb(struct hostapd_data *hapd, struct sta_info *sta);
235
236 int ap_sta_flags_txt(u32 flags, char *buf, size_t buflen);
237
238 #endif /* STA_INFO_H */
239